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Title: Wind turbine spoiler

Abstract

An aerodynamic spoiler system for a vertical axis wind turbine includes spoilers on the blades initially stored near the rotor axis to minimize drag. A solenoid latch adjacent the central support tower releases the spoilers and centrifugal force causes the spoilers to move up the turbine blades away from the rotor axis, thereby producing a braking effect and actual slowing of the associated wind turbine, if desired. The spoiler system can also be used as an infinitely variable power control by regulated movement of the spoilers on the blades over the range between the undeployed and fully deployed positions. This is done by the use of a suitable powered reel and cable located at the rotor tower to move the spoilers.

Inventors:
Publication Date:
OSTI Identifier:
5500136
Patent Number(s):
US 4500257
Assignee:
The United States of America as represented by the United States Department of Energy
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 24 Feb 1983; Other Information: PAT-APPL-469348
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; VERTICAL AXIS TURBINES; CONTROL EQUIPMENT; AERODYNAMICS; DRAG; ROTORS; SOLENOIDS; SUPPORTS; TURBINE BLADES; ELECTRIC COILS; ELECTRICAL EQUIPMENT; EQUIPMENT; FLUID MECHANICS; MACHINERY; MECHANICAL STRUCTURES; MECHANICS; TURBINES; TURBOMACHINERY; WIND TURBINES; 170602* - Wind Energy Engineering- Turbine Design & Operation

Citation Formats

Sullivan, W N. Wind turbine spoiler. United States: N. p., 1985. Web.
Sullivan, W N. Wind turbine spoiler. United States.
Sullivan, W N. Tue . "Wind turbine spoiler". United States.
@article{osti_5500136,
title = {Wind turbine spoiler},
author = {Sullivan, W N},
abstractNote = {An aerodynamic spoiler system for a vertical axis wind turbine includes spoilers on the blades initially stored near the rotor axis to minimize drag. A solenoid latch adjacent the central support tower releases the spoilers and centrifugal force causes the spoilers to move up the turbine blades away from the rotor axis, thereby producing a braking effect and actual slowing of the associated wind turbine, if desired. The spoiler system can also be used as an infinitely variable power control by regulated movement of the spoilers on the blades over the range between the undeployed and fully deployed positions. This is done by the use of a suitable powered reel and cable located at the rotor tower to move the spoilers.},
doi = {},
url = {https://www.osti.gov/biblio/5500136}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {2}
}